Speaker



FIG. 1 is a perspective view of a speaker of my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a back view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof; and,

FIG. 8 is an of exploded thereof, showing the internal components for clarity of illustration.

The undisclosed views of the exploded components form no part of the claimed design. 

The ornamental design for a "speaker", as shown and described. 